User menu

You are here

This video features NASA scientist Claire Parkinson explaining atmospheric carbon dioxide levels seen in measurements collected at the Mauna Loa observatory since 1958 and recent global model output. The seasonal cycle of plants on land and in the ocean explains the annual rise and fall of carbon dioxide. The long-term trend toward more CO2 in our atmosphere is largely due to human activity. We are putting CO2 into the air faster than nature can remove it.